In a desolate sector of space floats the Well World -- the ancient Markovian supercomputer that first created and now maintains the Universe.
While attempting to repel an insidious intergalactic invasion, Mankind resorts to a weapon of such awesome destructive power that it undermines the Well World's control of time and space and threatens the very existence of the Universe.
It was up to Mavra Chang -- victim and veteran of the Wars of the Well -- and Obie, her colossal computer companion, to find the only being capable of going to the Well World and repairing the damage at its source.
But the infamous and near-mythical Nathan Brazil -- sometime freighter captain, often the Wandering Jew, perhaps even God -- did not want to be found.
But Mavra and Obie were never two to take no for an answer...